Design of cyclone separators for emergency relief systems

摘要

The main dimensions of cyclone separators for emergency relief systems have been optimized by means of measurements of the gas loading capacity of geometrically similar cyclones having diameters of 290 and 1000 mm.For these experiments,separators made of Plexiglas with inlet pipes located at the top or at the bottom were used.The inlet diameter as well as the cover and outlet geometries were varied and also physical properties of the liquid in the two-phase mixture to be separated were changed.Thus experiments have been carried out with mixtures of air and water,aqueous Luviskol,having viscosites of 180 to 1100 mPas,as well as two aqueous foams,the surfactant K8 and methylcellulose.In order to apply the experimental results to other flow rates the superficial velocity of the gas in the skirt should be limited.For air at ambient pressure the permissible limiting velocity amounts to 12 m/s.With that the amount of entrained liquid can be reduced to less than 1 wt.-